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Title:
ALUMINUM ALLOY FOIL AND METHOD FOR PRODUCING ALUMINUM ALLOY FOIL
Document Type and Number:
WIPO Patent Application WO/2020/137394
Kind Code:
A1
Abstract:
This aluminum alloy foil includes a composition containing Fe (1.0-1.8 mass%), Si (0.09-0.20 mass%), Cu (0.005-0.05 mass%), and Mn (limited to no more than 0.01 mass%), the balance being Al and unavoidable impurities. According to a crystal orientation analysis per unit area by electron backscatter diffraction (EBSD), the length ratio of high angle grain boundaries (HAGBs) having an orientation difference of at least 15° to low angle grain boundaries (LAGBs) having an orientation difference of at least 2° but less than 15° satisfies "HAGBs/LAGBs > 2.0". As a texture, the orientation density of Cu is not more than 40, and the orientation density of R is not more than 30.

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Inventors:
SUZUKI TAKASHI (JP)
Application Number:
PCT/JP2019/047367
Publication Date:
July 02, 2020
Filing Date:
December 04, 2019
Export Citation:
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Assignee:
MITSUBISHI ALUMINIUM (JP)
International Classes:
C22C21/00; C22F1/04; C22F1/00
Domestic Patent References:
WO2013168606A12013-11-14
WO2019008783A12019-01-10
WO2019008784A12019-01-10
Foreign References:
JP2015203154A2015-11-16
JP2018168449A2018-11-01
JP2005163077A2005-06-23
Attorney, Agent or Firm:
YOKOI Koki (JP)
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